Abstract
A mathematical model of dissolution of gas in a metal is suggested with account of phase formation in accordance with the phase constitution diagram (PCD). The stage-by-stage saturation process to the final product formation is shown for an individual particle, through which a reaction wave passes, depending on the diffusion permeability of the metal and solubility conditions that obey Sieverts's law. The effect of the filtration supply of the oxidant to the reaction zone and the process exothermicity on the course of the process is shown.
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Additional information
Institute of Structural Macrokinetics, Russian Academy of Sciences, Chernogolovka, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 65, No. 4, pp. 447–450, October, 1993.
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Borovinskaya, I.P., Ivleva, T.P., Loryan, V.E. et al. Numerical investigation of nitriding of refractory metals (with account of the phase constitution diagrams for metal-gas systems). J Eng Phys Thermophys 65, 988–990 (1993). https://doi.org/10.1007/BF00862771
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DOI: https://doi.org/10.1007/BF00862771